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PECIFICATIONS
3.1 General specifications
Perform the dielectric withstand voltage test between the GND terminal and all the other termi-
nals short-circuited.
3.2 Performance specifications
Item Specification
General specifications (excluding the following) Same as those for the FX2N main unit
Dielectric withstand voltage 500V AC, 1min (between all terminals and ground)
Item 1-phase input 2-phase input
1 input 2 inputs 1 edge count 2 edge count 4 edge count
Input signal
Signal level
Phase A, Phase B [A24+],[B24+] :24V DC±10% 7mA or less
[A12+],[B12+] :12V DC±10% 7mA or less
[A5+],[B5+] :3.0V to 5.5V DC 12.5mA or less
PRESET, DISABLE [XP24],[XD24] :10.8V to 26.4V DC 15mA or less
[XP5],[XD5] :5V DC±10% 8mA or less
(Selected by terminal connection)
MAX. frequency 50 kHz 25 kHz 12.5kHz
Pulse shape
t1 :Rise/fall time is 3µs or less
t2 :ON/OFF pulse 6µs or more (at 50kHz)
t3 :Phase difference between A and B is 3.5µs or
more (at 50kHz)
PRESET(Z phase) input 100µs or more
DISABLE (count prohibit) input 100µs or more
Counting
specification
Format
Automatic UP/DOWN (however, when on 1-phase 1-input mode, UP/DOWN is
determined by a PLC command or an input terminal.)
Range When 32-bit is specified : -2,147,483,648 to +2,147,483,647
When 16-bit is specified : 0 to 65,535 (upper limit can be user specified)
Comparison
Ty p e
Each output is set when the present value of the counter matches with the
compare value (which is transferred from the PLC), and is switched OFF by a
reset command from the PLC.
YH : Direct output processed by hardware.
YS : Software processed output with worst delay time of 300µs.
(Therefore, when the input frequency is 50 kHz, the